📦 Freebsd

by Freebsd

🔍 What is Freebsd?

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🛡️ Security Overview

Click on a severity to filter vulnerabilities

⚠️ Known Vulnerabilities

CVE-2024-43102

CRITICAL CVSS 10.0 Sep 5, 2024

This CVE describes a use-after-free vulnerability in FreeBSD's umtx (user mutex) subsystem where concurrent destruction of anonymous shared memory mappings can cause premature freeing of kernel object...

CVE-2024-29937

CRITICAL CVSS 9.8 Apr 11, 2024

This critical vulnerability in NFS implementations allows remote attackers to execute arbitrary code on affected systems without requiring authentication. It affects OpenBSD and FreeBSD systems runnin...

CVE-2022-23088

CRITICAL CVSS 9.8 Feb 15, 2024

This vulnerability allows remote attackers to execute arbitrary code on FreeBSD systems by sending specially crafted 802.11 beacon frames with malicious Mesh ID data. The flaw occurs when a FreeBSD Wi...

CVE-2023-5941

CRITICAL CVSS 9.8 Nov 8, 2023

A heap buffer overflow vulnerability in FreeBSD's libc stdio function __sflush() allows attackers to corrupt data or execute arbitrary code when write errors occur. This affects applications using std...

CVE-2023-3326

CRITICAL CVSS 9.8 Jun 22, 2023

CVE-2023-3326 is an authentication bypass vulnerability in pam_krb5 where the module fails to properly validate Kerberos ticket-granting tickets from the KDC when no keytab is provisioned. This allows...

CVE-2020-25583

CRITICAL CVSS 9.8 Mar 29, 2021

This is a critical buffer overflow vulnerability in FreeBSD's rtsold IPv6 router advertisement daemon. Attackers can exploit it by sending malicious DNSSL options to trigger remote code execution or d...

CVE-2024-42416

HIGH CVSS 8.8 Sep 5, 2024

This vulnerability allows arbitrary write to kernel memory in FreeBSD's bhyve hypervisor due to insufficient validation in the ctl_report_supported_opcodes function. Malicious software in a guest VM c...

CVE-2024-45063

HIGH CVSS 8.8 Sep 5, 2024

This CVE describes a use-after-free vulnerability in the ctl_write_buffer function that allows malicious software in a guest VM to achieve code execution on the host bhyve process, which typically run...

CVE-2024-7589

HIGH CVSS 8.1 Aug 12, 2024

CVE-2024-7589 is a race condition vulnerability in OpenSSH's sshd on FreeBSD systems that allows unauthenticated remote attackers to potentially execute arbitrary code with root privileges. The vulner...

CVE-2024-6760

HIGH CVSS 7.5 Aug 12, 2024

This CVE-2024-6760 vulnerability allows unprivileged users to trace setuid programs due to a kernel tracing logic bug, enabling them to inspect program behavior and potentially read sensitive files li...

CVE-2022-23090

HIGH CVSS 7.7 Feb 15, 2024

CVE-2022-23090 is a use-after-free vulnerability in FreeBSD's asynchronous I/O implementation where the aio_aqueue function fails to release a credential reference in error cases. This allows attacker...

CVE-2022-23092

HIGH CVSS 8.8 Feb 15, 2024

CVE-2022-23092 is a memory corruption vulnerability in lib9p's RWALK message handling that allows a malicious bhyve guest kernel to overwrite host memory. This could lead to arbitrary code execution w...

CVE-2022-23085

HIGH CVSS 8.2 Feb 15, 2024

CVE-2022-23085 is an integer overflow vulnerability in FreeBSD's netmap subsystem that allows kernel memory corruption. A privileged process within a jail can exploit this to affect the host system wh...

CVE-2022-23087

HIGH CVSS 8.8 Feb 15, 2024

CVE-2022-23087 is a memory corruption vulnerability in the e1000 network adapter emulation in bhyve hypervisor. A malicious guest VM can overwrite host memory, potentially leading to host code executi...

CVE-2023-6534

HIGH CVSS 7.5 Dec 13, 2023

A vulnerability in FreeBSD's pf(4) packet filter incorrectly validates TCP sequence numbers, allowing attackers to execute denial-of-service attacks against hosts behind affected firewalls. This affec...

CVE-2023-5369

HIGH CVSS 7.1 Oct 4, 2023

This CVE-2023-5369 vulnerability allows sandboxed processes with only read or write capabilities (but no seek capability) to bypass file position restrictions and read/write data at arbitrary location...

CVE-2023-4809

HIGH CVSS 7.5 Sep 6, 2023

This CVE allows IPv6 packets with multiple fragment headers to bypass pf firewall rules by being incorrectly reassembled and processed. Systems using pf packet filtering with IPv6 fragment reassembly ...

CVE-2023-3494

HIGH CVSS 8.8 Aug 1, 2023

A buffer overflow vulnerability in the fwctl driver of bhyve hypervisor allows malicious privileged software running in a guest VM to execute arbitrary code on the host system. The vulnerability affec...

CVE-2021-29630

HIGH CVSS 8.1 Aug 30, 2021

This is a stack-based buffer overflow vulnerability in FreeBSD's ggatec daemon that allows remote code execution. Attackers in a privileged network position can send oversized responses to overwrite t...

CVE-2021-29631

HIGH CVSS 7.8 Aug 30, 2021

This vulnerability in FreeBSD's bhyve hypervisor allows malicious virtual machine guests to cause memory corruption in the host's bhyve process. This can lead to process crashes or potentially arbitra...

CVE-2020-7469

HIGH CVSS 7.5 Jun 4, 2021

This is a use-after-free vulnerability in FreeBSD's ICMPv6 network stack that allows attackers to potentially execute arbitrary code or cause denial of service. It affects FreeBSD systems with IPv6 en...

CVE-2021-29628

HIGH CVSS 7.5 May 28, 2021

This vulnerability in FreeBSD kernels allows system calls to disable SMAP (Supervisor Mode Access Prevention) protections temporarily, creating a window where other kernel bugs could be exploited to g...

CVE-2020-25584

HIGH CVSS 7.5 Apr 7, 2021

This vulnerability allows a superuser inside a FreeBSD jail with the non-default allow.mount permission to exploit a race condition between directory lookup and filesystem remounting, enabling access ...

CVE-2021-29627

HIGH CVSS 7.8 Apr 7, 2021

A double-free vulnerability in FreeBSD's accept filter implementation allows attackers to potentially execute arbitrary code or cause denial of service. This affects FreeBSD systems with listening soc...